Brake mechanism



Dec. 16, 1930.

S. BEAT-TY BRAKE MEGHANISM Filed Jan. 9 1950 3 Sheets-Sheet l *THS /Homey Dec. 16, 1930.

S. BEATTY BRAKE MECHANISM VF'ilecl Jan. Q 1930 3 Sheets-#Sheet 2Inventor .flanfe/ @@9257 A Homey De.16,19 3o; y s mim-Nv 1,785,432

BRAKE MECHANISM Y Filed Jan. Q 1950 3 Sheets-Sheet 3 O Q I Inventorpatented DcQlG, 193() STANLEYBEATTY, on niennnivnfivnw YORK Y Y BRAKEiunoiaivisii i Appiieatinniea January 9, 193e. seiine 419,634.

The present invention relates to a brake mechanism, and contemplates astructure priinarily intended for use upon hand truclsfofr aV well knowntype so that such trucks can be` 5 conveniently held against movementwhen de-v sired. a y A The nature and advantages of the invention willbe better understood when the following detailed description =is read inconnection lbwith the accompanying drawings, the inven-y tionresidinginthe construction, combination and arrangement of partsas claimed. i l

In thedrawings formingpart'ofthis application, the like numerals ofreference indil cate` similar parts of the several views,and

wherein: Y

A Figure 1 is a bottom plan view embodying thefeatures of my invention,A

' Figure 2 is a side elevation thereof,

therethrough taken substantially on theline 3-3 of Figure'l,

Figure 1 is aA fragmentary front elevation of the truck, and

Figure 5 is a perspective view of the operating rod. l

Referring to the drawings in detail it will .be seen thatthe numeral 5denotes a rectangular frame across the forward end of which 33 there issuspended a `bar 6 by means of strap iron cradles-7. Caster wheels 8 areconnected to this bar 6. a

A pair of cross bars 9 are mounted under the rear portion of the framein spaced parallelism to each other and have secured thereto blocks 10under which are mounted aXle l1V with wheels 12 journalled yon the endsthereofl This structure thus far described is conl c ventional. Myinvention resides in the pro- 40 vision of a pair of elongated shoeslitresting on the blocks 10 and having bolts 15 countersunk thereinaiidextending inwardly therefrom through openings in angle iron bars 16.

Links 17 are slidable through guides 18 un- Y 457i der longitudinalmembers 19 of the frame 5 and are pivotally connected with centers ofthebars 16 by means of bolts 20. The inner ends of the links are pivoted asat 21 to an operating rod 23 which is slidable through a slot-211 Figure3 is a vertical transverse section L 'in the front cross member of theframe 5 andV has a plurality of 25 to receive upper'edge of a plate i26fixed to the front end f ofthe frame acrossthev lower ,endl of the slot24. A

handle extension 27 risesv from the'front 155i endiofthe operating rod.-Springs 30 are disposed about 'thebolts 15. It willtherefore be seenthat when the rod 23 is pulledforwardly A thereby rocking the links 17tending .tobring v them into alinement witheach other,the`angle ironbars 16are forced outwardly tensioning:

thespringsBO to resiliently force the shoes in-v: to engagement with theinner sides of the wheels l2 `for braking'l purposes as `will be quiteapparent. l i' f Obviously `tlie brake Amechanism. may be set in an off,oren position by the proper manipulationof the, operating rod inconjunction, *.,witlithe brake 26.--l .Y f

y y Itvvill furtherbe seenthat the structure is exceedingly simple,inexpensivetogmanufac- Y ture, easyl Lto install, compact and convenientin its arrangement ofparts, and thoroughly y efi'cientand reliable Vinvuse and operation". y

' Thepresent.embodiment of the i invention `Zeil however, has beendisclosedin considerable detail merely-,for thewpurposes of exemplilicalg tion sincein actual practice itattains the features of advantageenumerated as desirable in f vthe statement of the inventionV and theabovev Kao description.` l L Y It will be apparentthat changes in thedetails lofyclonstructiomand inthe combination n and arrangementof partsmay be resortedtovvv without departing from the spirit or scope of.A c5

the invention as hereinafterclaimed or sacriiicing anyofitsadvantages'.`

Having thus describedmy invention, what I claim as new is: l i

1f. In @truck .structure oft-the class desa' i laterally in respect tothe frame for tensiondisposed blocks under the cross members, anv

axle mounted under the blocks transverselyV` ingand untensioning thesprings to apply or disengage the brake.

V2. In a truck structure kof the class de scribed, a frame, a'pair ofspaced cross members undertheframda pair of longitudinally of the frame,Wheels journaled on the axle, shoes slidablymounted on top of theblocks,

bolts extending inwardlyfrom-theshoes, a i

pair of bars through Whichthe bolts are slidable, springs on the boltsbetween the bars and theshoes, and means vfor movingvthe bars laterallyin respect to the frame for tensioning and untensioning @the springs to'apply or dis-V engage the brake, said last mentioned means p comprisinga pair of guides mounted on the frame, links slidable and rockablethrough theguides, yand pivotallyconnected With the bars, a rodYpiv'otally connected Withthe in-V ner ends of the links ,for rockingthesame toniove the bars. i v y 3; In a truck `structure of theclassdescribed, a frame, a pair of spaced cross members under the frame,a pair of longitudinally disposed blocks under the cross members, anaxle mounted under the blocks transversely V- of the frame', Wheelsjournaled on the axle,

shoes slidably mounted on top sof the blocks, bolts extending inwardlyfrom the-shoes, a pairof'bars through Which'the bolts areslidableg'springs on the bolts lbetween theV bars Vand the shoes,andmeans for -inovi-ng the bars laterally in' respect to the frame fortensioning and untensioning. the spr-ings to apply lor disen'gageV theVvbrake,f"said last 'mentioned v means comprisingafpair of kguidesmounted on thei'frame,`] inksf slidable and rockable through the guides,and pivotally connected With'the bars, a rod pivotally connected Withsame to move the bars, said rod being slidable through an opening in thefront end of the frame, the front end ofthe rod being provided With aplurality of notches, a plate on the frontend of the frame across thebottom of the slot, so that said notches may be engaged with the upperedge thereof for holding the rod in a desired set position.

Y 5.,' AIn a truck structure of the class described, a frame, a pair ofspaced cross members under the frame, apair of longitudinally disposedblocks under the cross members, an

axle'mounted nnderthe blocks transversely ofthe frame, Wheels journaledonv the axle, shoes slidably mounted'on top of the blocks,

bolts extending inwardly from-the shoes, a

pair of bars through Which the bolts are slidable, springs on the boltsbetween the bars and the shoes, and means for moving thebars laterallyjin respect to the frame for tensioning and untensioning the springs toapply ordisengage the brake, said last mentioned means comprising a pairof ,guidesumounted on the frame, links slidable and rockable throughlthe guides, and pivotally 'connected With the bars, va rod pivotally'Vconnected Withthelinner ends-,of the links-for rocking the same to movethe bars, said rodfbeing slidable through an opening inthe front end ofthe frame, the front end of the rod being provided With a plurality ofnotches, a-plate on the front end of the frame across the bottom of theslot, so

I the inner "endsrof the'links for 4rocking the 'l Y' Y same kto movethe bars, said rod being slidable y opening in the: front end ofthe y ythrough an frame.V 'e Y f 4:. In a truck structure of the-'classdescribed, a frame, a pair of spaced cross mem- Y lbers under theframe,'a.pair of longitudinally V'disposed blocks under the crossmembers, anv axle mounted under the blocks transversely of the frame,vvheels journaled on theaxle,

shoes slidably mounted on top ofthe blocks, bolts'extending inwardlyfrom'the shoes, a pair of bars through Which'thebolts are. slidable,springszon thelbolts ,between the vbars and the shoes, and'mean'skformoving thebars` laterally in respect to the frame for tensioning anduntensioning thesprings to apply or disengage the brake, said lastmentioned 1neans comprising a pair ofrguid'es mounted ontherame, linksslidable and roclfralolethrough the guides,a`nd pivotally connected-Withlthe `bars, a rod pivotally connected With the inner ,ends ofthelinks Vfor rocking the

